Chapter 6: Replacing Assemblies
To remove and replace the acquisition board assembly
6–21
9
Carefully lift the back of the board to separate the acquisition board connectors from the
power distribution board.
10 Lift the board back from the front panel until the BNC connectors clear the front panel,
then lift the board away from the chassis.
Figure 5-21
Separate Acquisition Board from Power Distribution Board
11 To re-install the acquisition board assembly, reverse the above procedure.
Replacing the heat sink screws
When replacing the heat sink screws start all screws but do not torque them. For each heat sink torque 2
diagonally opposed screws first, and then torque the other 2 screws to 5 in-lb.
Replacing the BNC hex nuts
When assembling the hex nuts to secure the BNC connectors to the front panel, put the conical side of
the nut toward the front-panel casting.
Connectors
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